From 3722268b0859831ae96c9cb3f634382713139f6d Mon Sep 17 00:00:00 2001
From: Oleksandr Kuchmystyi <o.kuchmystyi@vyos.io>
Date: Tue, 10 Mar 2026 17:08:48 +0300
Subject: vpp: T8315: Add support for configuring unsupported NICs and update
 compatible list

Introduce `set vpp settings unsupported nics <pci-id>` and
`set vpp settings unsupported drivers <driver>` to permit VPP activation
on hardware not present in the validated NIC list. Update current compatible list.
---
 python/vyos/vpp/config_verify.py | 62 ----------------------------------------
 python/vyos/vpp/control_host.py  | 36 +++++++++++++++++++++++
 2 files changed, 36 insertions(+), 62 deletions(-)

(limited to 'python')

diff --git a/python/vyos/vpp/config_verify.py b/python/vyos/vpp/config_verify.py
index 6f1774b2f..57a94ddd5 100644
--- a/python/vyos/vpp/config_verify.py
+++ b/python/vyos/vpp/config_verify.py
@@ -62,68 +62,6 @@ def verify_vpp_tunnel_source_address(config: dict):
     )
 
 
-def verify_dev_driver(driver_type: str, driver: str) -> bool:
-    # Lists of drivers compatible with DPDK and XDP
-    drivers_dpdk: list[str] = [
-        'atlantic',
-        'bnx2x',
-        'e1000',
-        'ena',
-        'gve',
-        'hv_netvsc',
-        'i40e',
-        'ice',
-        'igc',
-        'ixgbe',
-        'ixgbevf',
-        'liquidio',
-        'mlx4_core',
-        'mlx5_core',
-        'qede',
-        'sfc',
-        'tap',
-        'tun',
-        'virtio_net',
-        'vmxnet3',
-    ]
-
-    drivers_xdp: list[str] = [
-        'atlantic',
-        'ena',
-        'gve',
-        'hv_netvsc',
-        'i40e',
-        'ice',
-        'igb',
-        'igc',
-        'ixgbe',
-        'mlx4_core',
-        'mlx5_core',
-        'qede',
-        'sfc',
-        'tap',
-        'tun',
-        'virtio_net',
-        'vmxnet3',
-    ]
-
-    if driver_type == 'dpdk':
-        if driver in drivers_dpdk:
-            return True
-    # XDP support is intentionally disabled (T8202).
-    # XDP is no longer configurable via the CLI.
-    # This logic is kept commented out to make it easy
-    # to reintroduce XDP if there is a clear need in the future.
-    #
-    # elif driver_type == 'xdp':
-    #     if driver in drivers_xdp:
-    #         return True
-    else:
-        raise ConfigError(f'"Driver type {driver_type} is wrong')
-
-    return False
-
-
 def create_cpu_error_message(cpus_required: int, cpus_available: int = None) -> str:
     cpu_info = get_cpus()
     logical_cores = sum(
diff --git a/python/vyos/vpp/control_host.py b/python/vyos/vpp/control_host.py
index 50ab4d97a..9808c9418 100644
--- a/python/vyos/vpp/control_host.py
+++ b/python/vyos/vpp/control_host.py
@@ -313,6 +313,42 @@ def get_eth_driver(iface: str) -> str:
         raise Exception(f'Could not determine driver for "{iface}": {error}') from error
 
 
+def get_pci_id(iface: str) -> str | None:
+    """
+    Retrieves the PCI ID for a specified network interface.
+
+    Args:
+        iface (str): The name of the network interface (e.g., 'eth0').
+
+    Raises:
+        OSError: The interface cannot be resolved or PCI ID files cannot be read
+
+    Returns:
+        str: The PCI ID in the format 'vendor:device'.
+        None: In case a NIC is not on a PCI bus.
+    """
+    dev_id = get_dev_id(iface)
+
+    # Check if this device is on a PCI bus, return `None` if this is not a PCI device
+    pci_dev_path = Path(f'/sys/bus/pci/devices/{dev_id}')
+    if not pci_dev_path.exists():
+        return None
+
+    # Read vendor and device IDs
+    def _read_bus(file: str) -> str:
+        path = Path(f'/sys/bus/pci/devices/{dev_id}/{file}')
+        return path.read_text().removeprefix('0x').strip()
+
+    try:
+        device_id, vendor_id = _read_bus('device'), _read_bus('vendor')
+    except OSError as e:
+        # If we reached this exception, then something really weird happened,
+        # but it is still right to have it
+        raise OSError(f'PCI IDs for {iface} cannot be retrieved') from e
+
+    return f'{vendor_id}:{device_id}'.lower()
+
+
 def unsafe_noiommu_mode(status: bool) -> None:
     """Control unsafe_noiommu_mode parameter of vfio module
 
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